Attachment for vacuum cleaners



Oct. 20, 1931. J, ANDERSEN I 1,828,584

ATTACHMENT FOR VACUUM CLEANERS Filed April 18, 1950 2 Sheets-Sheet l ATTORNEV Oct. 20, 1931. P. J. ANDERSEN ATTACHMENT FOR VACUUM CLEANERS Filed April 18, 1930 2 Sheets-Sheet 2 JPJAuderwerz ATTORNEY Patented Oct. 20, 1.931

PATENT OFFICE PETER T. ANDERSEN, OF SAN FRANCISCO, CALIFORNIA ATTACHMENT FOR VACUUM CLEANERS I Application filed April 18,

This invention relates to vacuum cleaners and more particularly to a novel bag unit for such a cleaner, and the primary object of the invention is to provide a bag unit so constructed that there may be the desired esca e of air and the desired accumulationof t e dust and the like taken up by the cleaner spout, without contamination of the surrounding air in the room in which the in this connection, means for permitting delivery of air from the bag and an auxiliary bag impervious to air except for a portion through which air is permittedto filter and be subjected to the purifying action of a disinfectant, thereby providing a bag which, when employed in connection with the vacuum cleaner mechanism, will produce a more sanitary device of this class than those in which ordinar bags are employed.

Another ob ect of the invention is to provide means whereby the disinfectantcarry- Eng means may be readily separated from the bag and a fresh quantity of a liquid disinfectant supplied.

V This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings, and specifically pointed out in the appended claims, it being understood of course'that minor changes may be made so long as they fall within the scope of the claims.

In describing my invention in detail, reference will be had to the accompanying drawings, wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a view partly in elevation and partly in section illustrating a vacuum cleaner equipped with the bag unit of the invention. v

Figure 2 is a fragmentary view in elevation looking at the inner side of the air pervions member of the bag unit, and with which the disinfectant carrying medium is associated.

Figure 3 is a sectional view on the line 33 cleaner is used, the invention contemplating,

cated by the numerals of Figure 2 looking in the direction indi-' 1930. Serial No. 445,446.

cated by the arrows and the view likewise showing the disinfectant pad which is to be employed.

Figure 4 is a viewsimilar to Figure 2 but looking at the reverse side of the air pervious unit. In the drawings the numeral 1 indicates in general an electric vacuum cleaner of the ordinary construction and embodying the usual spout 2 into which dust and other dirt on the floor surfaces is to be drawn by the operation of the suction fan of the cleaner, the exhaust spout leading from the fan casing being indicated by the'numeral 3. These parts of course are of the ordinary construcll tion, but the invention contemplates the employment, instead of the usual bag for 001- lecting dirt taken up by the cleaner spout 2, of a bag structure which will present the advantages above pointed out.

The bag unit comprises an inner bag 4 which may be of any of the ordinary cloth materials of which bags of this type are formed and is therefore pervious to air. Where a bag of this type is employed alone, 7| air passes through the bag and the finest particles of dust may be, at times. carried by the air and this escaping air is delivered in all directions into the air in the room where the cleaner is being used with the result that I. the pure air of the room is apt to become foul. Therefore the present invention contemplates the provision of an outer bag 5 which-is of rubber or rubberized material or any other material which is impervious ll to air and this bag is of such dimensions as to adapt it to be fitted loosely over the bag l so thatthere will be an air space between the bags under the pressure of the air which is discharged from the bag 4. 9

The bags are provided with mouths indi- 6' and 7 and the usual coupling collar 8 is provided for connecting the mouths of the bags wi h the delivery en of the spout.

While, as stated above, the bag 5 1s of rubher or other material impervious to air, it is of course necessary that escape of air from this bag be permitted, andin order that th s may be effected and the air purified by a disinfectf ing medium, at the time of its delivery to the of the opening which is surrounded by the these bands being band 10, a snap fastener 13 having its members mounted upon the two bands at the upper side thereof whereby, when the member 11 is swung to closed position or in other words to position resting against the member 10, the two bands will be held in this position. The numeral 14 indicates a circular sheet of fine foraminous or pervious material and this sheet is disposed with its marginal portion overlapping the band 10 and the band 11 is then swung about its hinge 12 and the members of the snap member 13 mutually engaged so that the sheet 14'will be clamped securely between the two bands, fiat sided and constituting in effect, frame members of the said pervious sheet.

As indicated above. the invention contemplates the provision of a disinfectant and im- 1 pregnated medium for purifying the air which passes through the meshof the sheet 14 and with this end in View the invention contemplates the provision of a pocket 15 which is likewise of pervious material and which is preferably of substantially segmental form, shown in Figures 2 and 4 of the drawings, although it may be of some other form if desired, and this pocket is stitched as at 16 at its margins to the outer side of the circular air pervious sheet 14. An opening 17 preferably circular in form is provided centrally in the sheet 14 and it is through this opening that the pad, which is indicated by the numeral 18, and which is to be saturated with a liquid disinfectant, may be inserted into the pocket. the pad being preferably of the flat form shown in Figure 3 of the drawings and, when in place within the pocket, substantially filling the said pocket.

From the foregoing description of the invention, it will be evident that the only air which can escape from the outer bag 5 of the bag unit of the invention is that which must pass through the pervious sheet 14 which eX- v tends over the openings formed in the front and rear sides of the bag 5, and as this air is purified before it is delivered into the room in which the vacuum cleaner is being used, it will be evident that there will be no fouling of the air of the room by the presence of dust and other objectionable solid matter.

What I claim is: I

1. A vacuum cleaner bag unit comprising an inner bag of pervious material, an outer bag of impervious material within which the inner bag is arranged, the bags having mouths for connection to the delivery end of the suction spout of the cleaner, the outer bag having an opening therein, a frame member surrounding the opening, a pervious sheet disposed over the opening and marginally retained in place by the said frame member, and means upon the said sheet for supporting a pad impregnated with disinfectant.

2. A vacuum cleaner bag unit comprising an inner bag of pervious material, an outer bag of impervious material within which the inner bag is arranged, the bags having mouths for connection to the delivery end of the suction spout of the cleaner, the outer bag having an opening therein, a frame member surrounding the opening, a pervious sheet disposed over the opening and marginally retained in place by the said frame member, and a pocket of pervious material upon the sheet to receive a pad impregnated with disinfectant.

8. A vacuum cleaner bag unit comprising an inner bag of pervious material, an outer bag of impervious material within which the inner bag is arranged, the bags having mouths for connection to the delivery end of the suction spout "of the cleaner, the outer bag aving an opening therein, a frame member surrounding the opening, a pervious sheet disposed over the opening and marginally retained in place by the said frame member, and a pocket of pervious material upon the sheet to receive a pad impregnated with disinfactant, the pocket being closed and the said sheet having an opening therein through which the pad may be introduced into the pocket.

4. A vacuum cleaner bag unit comprising an inner bag of pervious material, an outer bag of impervious material within which the inner bag is arranged, the bags having mouths for connection to the delivery end of the suction spout of the cleaner, the outer bag having an opening therein, a frame member surrounding the opening, a pervious sheet disposed over the opemng and marginally 

